United Flight 6639 Deals & Information (2026/2027)

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United Flight 6639 Route Deals From $584

The cheapest prices found with in the last 7 days for return flights were $1,093 and $584 for one-way flights to Joao Paulo II for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 7 - Fri, Aug 14
YYZ
Pearson Intl.
PDL
Joao Paulo II
$1,093 Roundtrip, found 11 hours ago
$1,093
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Aug 7 from Pearson Intl. to Joao Paulo II, returning Fri, Aug 14, priced at $1,093 found 11 hours ago